That's a very interesting question.
When I advocate for a fiscal anchor, I don't advocate for one specific fiscal anchor. I'm advocating for one fiscal anchor—or multiple if the government wants to have multiple such anchors. The choice of anchor is, obviously, up to the Minister of Finance, the Prime Minister and the cabinet, but when I'm advocating for one fiscal anchor, I'm not recommending one in particular.
However, one that's widely used is a declining or specific target, a declining debt-to-GDP ratio or a stable debt-to-GDP ratio. That's one that's widely used across the world. It is relatively well understood and also takes into account the science of the economy and the science of the government's debt.
Others have suggested targeting a specific growth rate or expenditures or revenues or interest debt payment. These are all, I wouldn't say, equally valued—it depends on the objective of a government—but these are all other fiscal anchors, and one can think of more fiscal anchors.
The choice of the anchor in and of itself, we can debate that, but first and foremost, I think we have to have an anchor.